Descriptor vs Modifier - What's the difference?

As nouns the difference between descriptor and modifier

is that descriptor is that which describes; a word, phrase, etc. serving as a description while modifier is one who, or that which, modifies.

(wikipedia descriptor)

(en noun)

That which describes; a word, phrase, etc. serving as a description.

# (computing) The name of a category of data in an information storage and retrieval system.

# (information science) A word that describes the subject of an article or book.

* (information science) index term

* file descriptor * segment descriptor

(wikipedia modifier)

(en noun)

One who, or that which, modifies.

(grammar) A word, phrase, or clause that limits or qualifies the sense of another word or phrase.

* qualifier

* access modifier * dangling modifier * modifier key